Stark was forced to publicly apologize to Swalwell last month after his unsubstantiated charges.

On Tuesday, he had to apologize once more after he said he had documentation to prove that Saunders — who writes the Chronicle’s “Token Conservative” blog” — donated to the Swalwell campaign.

Here’s our own SFChronicle/SFGate.com Shaky Hand Productions video of that meeting, complete with the awkward silences as the Congressman pages through his research at the urging of editors and reporters to substantiate his claim:

Stark, 80, made the shocking accusation during an hour-long session with Chronicle reporters at editors, which we’ll report on at length.

After being pressed about the public bribery charges against Alameda County deputy DA and Dublin City Councilman Swalwell, Stark Tuesday told editors and reporters that “someone in the room” had given money to his opponent. The Congressman consulted a folder of documents which he said were evidence compiled by “a 16-year-old investigative reporter,” whom he identified as his son.

Asked to specify a name, Stark cited Saunders. He said his information came from Federal Election Commission reports detailing donations to Swalwell.

Saunders, who was sitting in the room, denied the charge — and Stark, again consulting his material, admitted he got the name wrong.

Continuing to read from documents, he cited the name of Claudia McCormick, a former Dublin City Councilwoman, and identified her as the Chronicle staffer who donated funds to Swalwell. McCormick does not work for The Chronicle. Stark admitted again that he he was mistaken.